Thomas f



(Model.)

T. F. MGNAIR.

PLOW.

No. 248,778. Patented ont. 28,1881..

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UNTTED STATES PATENT EETCE.

THOMAS F. MCNAIR, OF DAWSON, GEORGIA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 248,773, dated October 25, 1881.

Application filed April 6, 1881. (Mod el.)

To all whom fit may concern Be it known that I, THOMAS F. MCNAIR, Ot' Dawson, in the county ot' Terrell and State of Georgia, have invented certain new and usel'ul Improvements in Plows, and I do hereby declare that the following is a full, clear, and exact description thereot', reference being had to the accompanying drawings, and to the letters ot reference marked thereon, makinga part of this specification.

This invention relates to certain improvements in plows; and it has for its objects to provide certain means whereby 'the several parts of the plowsuch as the standard, rootcutter, plow shovel or blade, and handlesmay be adjusted with respect to each other, as more fullyhereinafterspecified. Theseobjects I attain by the apparatus and mechanism illuslustrated in the accompanying which- Figure l represents my improved plow complete, u perspective. Fig. 2 represents a side elevation ot' my plow, and Fig. 3 represents a detached perspective view ofthe. root-cutter.

In the drawings, the letter A indicates the plow-beam, which may be of any desired construction and B indicates the handles, which in their general features are constructed in the ordinary manner. i

The rear portion ot' the beam is provided with a series ot' apertures, u, through which a bolt passes with a thumb-screw upon one end t'or the purpose ot' assisting` in securing the haudles in place and regulating the adjustmentot' the same. The handles are pivoted to a bolt at their lower ends, which passes through the beam. By means of the upper bolt the handles may he. adjusted to suit the height ot' thc operator.

,The letter O indicates the standard, which is composed ot' a single bar ot' metal bifureated, as indicated by the letter D, at its upper end, so as to embrace the beam to which it is secured by means ot the bolt E.

drawings, inv

TheletterFindicates a brace, whichis either hinged or bolted to the un derside ofthe reareud ofthe beam, its lower end being slotted longitudinally and connected b v adjusting-bolts a b to the standard. The said standard is slotted at its lower end for the passage ot' the adjusting-bolts.

The letter G indicates the plow blade or shovel, which is connected to the standard by means ot' the boltb.

The letter H indicates the root-cutter, which consists of an upright knife, l1, provided with a broad base, i, which is slotted at its upper end and bentbacliward, as indicated by thel letter 7c. This cutter is secured to the tace ot' the shovel by the lower bolt, b, which passes through it. The upper holt, ci, passes through an adjustable clamp, I, by which the brace is clamped to the standard in connection with the bolt b. The lower end of the brace is bent forward, as indicated by the letter m., and is adapted to engage either ot' a series ot' teeth, n, on the rear ofthe standard and give security to the connections when adjusted.

It will he seen from the above that the parts may be readily adjusted to any desired position, as may be required.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

In combination with the standard and the brace, pivoted to the plow-beam and slotted at their lower ends, the plow-shovel and root-cutter, constructed as descrihed, and adjustably secured to the standard by the lower bolt, which secures the. standard and brace, substantially as and t'or the purposes specied.

In testimony that 1 claim the foregoing.I have hereunto set my hand this 25th day otl January, 1881.

T. F. MCNAIR.

lVitnesses:

J. C. F. CLARK, H. S. BELL. 

